From d20e8f5cd2aa4be2a197452913997b6ead352c5a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Felix=20Schr=C3=B6ter?= <dev@felschr.com>
Date: Wed, 1 Feb 2023 20:20:27 +0100
Subject: [PATCH] feat(matrix): improve dendrite & element config

---
 services/matrix/dendrite.nix | 33 +++++++++++++++++----------------
 services/matrix/element.nix  | 16 ++++++++++++----
 2 files changed, 29 insertions(+), 20 deletions(-)

diff --git a/services/matrix/dendrite.nix b/services/matrix/dendrite.nix
index 803f393..8e447e2 100644
--- a/services/matrix/dendrite.nix
+++ b/services/matrix/dendrite.nix
@@ -4,7 +4,12 @@ let
   inherit (config.services) dendrite;
   server_name = "felschr.com";
   domain = "matrix.${server_name}";
-  connectionString = "postgresql:///dendrite?host=/run/postgresql";
+  database = {
+    connection_string = "postgresql:///dendrite?host=/run/postgresql";
+    max_open_conns = 10;
+    max_idle_conns = 2;
+    conn_max_lifetime = -1;
+  };
 in {
   age.secrets.dendrite-private-key = {
     file = ../../secrets/dendrite/privateKey.age;
@@ -19,26 +24,22 @@ in {
     enable = true;
     environmentFile = config.age.secrets.dendrite-env.path;
     settings = {
-      app_service_api.database.connection_string = connectionString;
-      federation_api.database.connection_string = connectionString;
-      key_server.database.connection_string = connectionString;
-      media_api.database.connection_string = connectionString;
-      mscs.database.connection_string = connectionString;
-      room_server.database.connection_string = connectionString;
-      sync_api.database.connection_string = connectionString;
-      user_api.account_database.connection_string = connectionString;
-      user_api.device_database.connection_string = connectionString;
+      app_service_api.database = database;
+      federation_api.database = database;
+      key_server.database = database;
+      media_api.database = database;
+      mscs.database = database;
+      room_server.database = database;
+      sync_api.database = database;
+      user_api.account_database = database;
 
       client_api.registration_shared_secret = "$REGISTRATION_SHARED_SECRET";
 
-      # 2 megabytes in bytes
-      media_api.max_file_size_bytes = 2097152;
+      media_api.max_file_size_bytes = 10485760; # 10 MB
 
       mscs.mscs = [
-        # spaces
-        "msc2836"
-        # threads
-        "msc2946"
+        "msc2836" # threads
+        "msc2946" # space summaries
       ];
 
       federation_api.key_perspectives = [{
diff --git a/services/matrix/element.nix b/services/matrix/element.nix
index 7458596..cf80adb 100644
--- a/services/matrix/element.nix
+++ b/services/matrix/element.nix
@@ -1,6 +1,8 @@
 { config, pkgs, ... }:
 
-let inherit (config.services.dendrite.settings.global) server_name;
+let
+  inherit (config.services.dendrite.settings.global) server_name;
+  matrix_host = "matrix.${server_name}";
 in {
   services.nginx.virtualHosts."element.felschr.com" = {
     forceSSL = true;
@@ -8,8 +10,8 @@ in {
     root = pkgs.element-web.override {
       conf = {
         default_server_config."m.homeserver" = {
-          "base_url" = "https://matrix.${server_name}";
-          "server_name" = "${server_name}";
+          base_url = "https://${matrix_host}";
+          server_name = "${server_name}";
         };
         disable_guests = true;
         features = {
@@ -19,7 +21,13 @@ in {
           feature_group_calls = true;
         };
         show_labs_settings = true;
-        roomDirectory.servers = [ "matrix.org" "gitter.im" "libera.chat" ];
+        roomDirectory.servers =
+          [ server_name "matrix.org" "gitter.im" "libera.chat" ];
+        enable_presence_by_hs_url = {
+          "https://${matrix_host}" = false;
+          "https://matrix.org" = false;
+          "https://matrix-client.matrix.org" = false;
+        };
         jitsi.preferred_domain = "meet.element.io";
         element_call.url = "https://call.element.io";
       };